TABLE 2.

Results obtained by culture, PCR-RFLP, and Scorpion PCR from 259 biopsy specimens

Outcome and no. of specimens (total)	Result bya:
	Culture and Etest	PCR-RFLP	Scorpion PCR
Concordance of all 3 methods (238 [92%])
184	Negative	Negative	Negative
34	S	S	S
15	R	A2143G	A2143G
5	R	A2142G	A2142G
Mixtures not detected by culture and by PCR-RFLP (3)
2	R	A2142Cb	A2142C + S
1	R	A2143G	A2143G + S
Default of PCR-RFLP (2)
1	S	Negative	S
1	R + S	S	A2142G + S
Default of PCR methods (1)
1	S	Negativec	Negativec
Default of culture (12)
7	Negative	S	S
4	Negative	A2143G	A2143G
1	Negative	A2142G + S	A2142G + S
Detection only by Scorpion PCR (3)
3	Negative	Negative	S

^aS, susceptible; R, resistant.

^bDetected by sequencing.

^cNegative because of the presence of PCR inhibitors.